528 lines
17 KiB
HTML
528 lines
17 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<title>n_signer Feather WebUSB Demo</title>
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<style>
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:root {
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--bg: #0b0f14;
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--panel: #121821;
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--panel-2: #182231;
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--text: #e6edf3;
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--muted: #9fb0c3;
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--accent: #58a6ff;
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--good: #3fb950;
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--bad: #f85149;
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--border: #263448;
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}
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* { box-sizing: border-box; }
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body {
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margin: 0;
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font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
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background: var(--bg);
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color: var(--text);
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line-height: 1.35;
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}
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.wrap {
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max-width: 980px;
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margin: 20px auto;
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padding: 0 14px 24px;
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}
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h1 { margin: 0 0 8px; font-size: 1.45rem; }
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p.note { margin: 0 0 14px; color: var(--muted); }
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.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
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.grid {
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display: grid;
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grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
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gap: 12px;
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margin-top: 12px;
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}
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.card {
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background: linear-gradient(180deg, var(--panel), var(--panel-2));
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border: 1px solid var(--border);
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border-radius: 12px;
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padding: 12px;
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}
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.card h2 {
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font-size: 1rem;
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margin: 0 0 10px;
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}
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label {
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font-size: 0.86rem;
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color: var(--muted);
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display: block;
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margin: 6px 0 4px;
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}
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input, textarea, button {
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font: inherit;
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border-radius: 8px;
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border: 1px solid var(--border);
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}
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input, textarea {
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width: 100%;
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background: #0c131d;
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color: var(--text);
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padding: 8px 10px;
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}
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textarea { min-height: 84px; resize: vertical; }
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input[type="number"] { max-width: 130px; }
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button {
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background: #1f6feb;
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color: white;
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padding: 8px 12px;
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cursor: pointer;
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border: 0;
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}
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button[disabled] {
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opacity: 0.55;
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cursor: not-allowed;
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}
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.secondary { background: #334155; }
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.status {
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padding: 6px 10px;
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border-radius: 999px;
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background: #2a3648;
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color: var(--muted);
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font-size: 0.85rem;
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border: 1px solid var(--border);
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}
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.status.ok { color: var(--good); border-color: #2f5a3a; }
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.status.err { color: var(--bad); border-color: #6a3131; }
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pre {
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margin: 8px 0 0;
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background: #0a1018;
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border: 1px solid #1b2636;
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color: #d7e2ee;
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padding: 10px;
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border-radius: 8px;
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overflow: auto;
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max-height: 220px;
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font-size: 12px;
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}
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.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
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</style>
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</head>
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<body>
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<div class="wrap">
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<h1>n_signer Feather WebUSB Demo</h1>
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<p class="note">Connect to the board, choose a key index, fetch a pubkey, sign a kind 1 event, and test NIP-04 / NIP-44 encrypt + decrypt RPCs.</p>
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<div class="card">
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<div class="row">
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<button id="connectBtn">Connect WebUSB</button>
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<span id="connStatus" class="status">Disconnected</span>
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</div>
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<pre id="log" class="mono"></pre>
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</div>
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<div class="grid">
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<section class="card">
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<h2>Public Key</h2>
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<label for="keyIndex">Key index (nostr_index)</label>
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<input id="keyIndex" type="text" inputmode="numeric" pattern="[0-9]*" value="0" />
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<div class="row" style="margin-top:10px">
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<button id="pubkeyBtn" disabled>Get Public Key</button>
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</div>
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<pre id="pubkeyOut" class="mono"></pre>
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</section>
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<section class="card">
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<h2>Sign Kind 1 Event</h2>
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<label for="kind1Content">Content</label>
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<textarea id="kind1Content">hello from feather webusb demo</textarea>
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<label for="kind1Tags">Tags JSON (array)</label>
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<input id="kind1Tags" value="[]" />
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<div class="row" style="margin-top:10px">
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<button id="signKind1Btn" disabled>Create + Sign kind 1</button>
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</div>
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<pre id="signOut" class="mono"></pre>
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</section>
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<section class="card">
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<h2>NIP-04 Encrypt</h2>
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<label for="nip04Peer">Peer pubkey (hex, 32-byte x-only)</label>
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<input id="nip04Peer" placeholder="e.g. 64 hex chars" />
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<label for="nip04Msg">Plaintext</label>
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<textarea id="nip04Msg">hello via nip04</textarea>
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<div class="row" style="margin-top:10px">
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<button id="nip04EncBtn" disabled>Encrypt (nip04_encrypt)</button>
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</div>
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<pre id="nip04Out" class="mono"></pre>
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</section>
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<section class="card">
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<h2>NIP-04 Decrypt</h2>
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<label for="nip04DecPeer">Peer pubkey (hex, 32-byte x-only)</label>
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<input id="nip04DecPeer" placeholder="e.g. 64 hex chars" />
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<label for="nip04Cipher">Ciphertext</label>
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<textarea id="nip04Cipher" placeholder="ciphertext?iv=..."></textarea>
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<div class="row" style="margin-top:10px">
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<button id="nip04DecBtn" disabled>Decrypt (nip04_decrypt)</button>
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</div>
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<pre id="nip04DecOut" class="mono"></pre>
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</section>
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<section class="card">
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<h2>NIP-44 Encrypt</h2>
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<label for="nip44Peer">Peer pubkey (hex, 32-byte x-only)</label>
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<input id="nip44Peer" placeholder="e.g. 64 hex chars" />
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<label for="nip44Msg">Plaintext</label>
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<textarea id="nip44Msg">hello via nip44</textarea>
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<div class="row" style="margin-top:10px">
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<button id="nip44EncBtn" disabled>Encrypt (nip44_encrypt)</button>
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</div>
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<pre id="nip44Out" class="mono"></pre>
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</section>
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<section class="card">
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<h2>NIP-44 Decrypt</h2>
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<label for="nip44DecPeer">Peer pubkey (hex, 32-byte x-only)</label>
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<input id="nip44DecPeer" placeholder="e.g. 64 hex chars" />
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<label for="nip44Cipher">Ciphertext</label>
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<textarea id="nip44Cipher" placeholder="base64 payload"></textarea>
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<div class="row" style="margin-top:10px">
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<button id="nip44DecBtn" disabled>Decrypt (nip44_decrypt)</button>
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</div>
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<pre id="nip44DecOut" class="mono"></pre>
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</section>
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</div>
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</div>
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<script type="module">
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import { schnorr } from "https://esm.sh/@noble/curves@1.5.0/secp256k1?bundle";
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const logEl = document.getElementById("log");
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const connStatusEl = document.getElementById("connStatus");
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const connectBtn = document.getElementById("connectBtn");
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const pubkeyBtn = document.getElementById("pubkeyBtn");
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const signKind1Btn = document.getElementById("signKind1Btn");
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const nip04EncBtn = document.getElementById("nip04EncBtn");
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const nip04DecBtn = document.getElementById("nip04DecBtn");
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const nip44EncBtn = document.getElementById("nip44EncBtn");
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const nip44DecBtn = document.getElementById("nip44DecBtn");
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const keyIndexEl = document.getElementById("keyIndex");
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const pubkeyOutEl = document.getElementById("pubkeyOut");
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const kind1ContentEl = document.getElementById("kind1Content");
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const kind1TagsEl = document.getElementById("kind1Tags");
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const signOutEl = document.getElementById("signOut");
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const nip04PeerEl = document.getElementById("nip04Peer");
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const nip04MsgEl = document.getElementById("nip04Msg");
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const nip04OutEl = document.getElementById("nip04Out");
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const nip04DecPeerEl = document.getElementById("nip04DecPeer");
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const nip04CipherEl = document.getElementById("nip04Cipher");
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const nip04DecOutEl = document.getElementById("nip04DecOut");
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const nip44PeerEl = document.getElementById("nip44Peer");
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const nip44MsgEl = document.getElementById("nip44Msg");
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const nip44OutEl = document.getElementById("nip44Out");
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const nip44DecPeerEl = document.getElementById("nip44DecPeer");
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const nip44CipherEl = document.getElementById("nip44Cipher");
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const nip44DecOutEl = document.getElementById("nip44DecOut");
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let dev = null;
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let iface = null;
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let ownPubkey = "";
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const EP_OUT = 1;
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const EP_IN = 1;
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function log(...args) {
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logEl.textContent += args.join(" ") + "\n";
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logEl.scrollTop = logEl.scrollHeight;
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}
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function setStatus(text, mode = "") {
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connStatusEl.textContent = text;
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connStatusEl.className = `status ${mode}`.trim();
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}
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function hex(bytes) {
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return Array.from(bytes).map(b => b.toString(16).padStart(2, "0")).join("");
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}
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function utf8(s) {
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return new TextEncoder().encode(s);
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}
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function be32(n) {
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return new Uint8Array([(n >>> 24) & 0xff, (n >>> 16) & 0xff, (n >>> 8) & 0xff, n & 0xff]);
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}
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async function sha256Hex(dataBytes) {
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const h = await crypto.subtle.digest("SHA-256", dataBytes);
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return hex(new Uint8Array(h));
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}
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function getIndexOptions() {
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const raw = Number.parseInt(String(keyIndexEl.value ?? "0"), 10);
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const index = Number.isFinite(raw) && raw >= 0 ? raw : 0;
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return { nostr_index: index };
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}
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function pretty(value) {
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try {
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return JSON.stringify(value, null, 2);
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} catch {
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return String(value);
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}
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}
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async function buildAuth(method, params) {
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// Demo caller key only (not secret in browser demo).
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const callerPriv = Uint8Array.from({ length: 32 }, (_, i) => i + 1);
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const callerPubX = hex(schnorr.getPublicKey(callerPriv));
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const createdAt = Math.floor(Date.now() / 1000);
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const paramsJson = JSON.stringify(params);
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const bodyHash = await sha256Hex(utf8(paramsJson));
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const tags = [
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["nsigner_rpc", "1"],
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["nsigner_method", method],
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["nsigner_body_hash", bodyHash],
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];
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const content = "webusb-demo";
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const ser = JSON.stringify([0, callerPubX, createdAt, 27235, tags, content]);
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const id = await sha256Hex(utf8(ser));
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const sigBytes = await schnorr.sign(id, callerPriv, new Uint8Array(32));
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const sigHex = typeof sigBytes === "string" ? sigBytes : hex(sigBytes);
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return {
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id,
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pubkey: callerPubX,
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created_at: createdAt,
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kind: 27235,
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tags,
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content,
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sig: sigHex,
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};
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}
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async function sendRpc(reqObj) {
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const body = utf8(JSON.stringify(reqObj));
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const frame = new Uint8Array(4 + body.length);
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frame.set(be32(body.length), 0);
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frame.set(body, 4);
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await dev.transferOut(EP_OUT, frame);
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const deadline = Date.now() + 10000;
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let ring = new Uint8Array(0);
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while (Date.now() < deadline) {
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const r = await dev.transferIn(EP_IN, 512);
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if (!r.data || r.data.byteLength === 0) continue;
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const chunk = new Uint8Array(r.data.buffer, r.data.byteOffset, r.data.byteLength);
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const next = new Uint8Array(ring.length + chunk.length);
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next.set(ring, 0);
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next.set(chunk, ring.length);
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ring = next;
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while (ring.length >= 4) {
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const n = (ring[0] << 24) | (ring[1] << 16) | (ring[2] << 8) | ring[3];
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if (n <= 0 || n > 1_000_000) {
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ring = ring.slice(1);
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continue;
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}
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if (ring.length < 4 + n) break;
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const payload = ring.slice(4, 4 + n);
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ring = ring.slice(4 + n);
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const txt = new TextDecoder().decode(payload);
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return JSON.parse(txt);
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}
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}
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throw new Error("Timed out waiting for framed response");
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}
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async function rpcCall(method, params, id = "web-1") {
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const auth = await buildAuth(method, params);
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const req = { jsonrpc: "2.0", id, method, params, auth };
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log("→", method, JSON.stringify(params));
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const resp = await sendRpc(req);
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log("←", method, JSON.stringify(resp));
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return resp;
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}
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function requirePeerHex(peer) {
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const v = String(peer || "").trim().toLowerCase();
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if (!/^[0-9a-f]{64}$/.test(v)) {
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throw new Error("Peer pubkey must be exactly 64 hex chars (x-only pubkey)");
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}
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return v;
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}
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function requireStringResult(resp, what) {
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if (resp && typeof resp.result === "string") {
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return resp.result;
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}
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throw new Error(`${what} failed: ${pretty(resp)}`);
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}
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async function fetchOwnPubkeyAndFillPeers() {
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const params = [getIndexOptions()];
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const resp = await rpcCall("get_public_key", params, "web-own-pubkey");
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if (resp && typeof resp.result === "string") {
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ownPubkey = resp.result.trim().toLowerCase();
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pubkeyOutEl.textContent = pretty(resp);
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if (/^[0-9a-f]{64}$/.test(ownPubkey)) {
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nip04PeerEl.value = ownPubkey;
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nip04DecPeerEl.value = ownPubkey;
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nip44PeerEl.value = ownPubkey;
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nip44DecPeerEl.value = ownPubkey;
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}
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}
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}
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async function connect() {
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dev = await navigator.usb.requestDevice({ filters: [{ vendorId: 0x303a }] });
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await dev.open();
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if (dev.configuration === null) {
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await dev.selectConfiguration(1);
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}
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const intf = dev.configuration.interfaces.find(i =>
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i.alternates.some(a => a.interfaceClass === 0xff)
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);
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if (!intf) throw new Error("No vendor WebUSB interface found");
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iface = intf.interfaceNumber;
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await dev.claimInterface(iface);
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const alt = intf.alternates.find(a => a.interfaceClass === 0xff);
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await dev.selectAlternateInterface(iface, alt.alternateSetting);
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await dev.controlTransferOut({
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requestType: "class",
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recipient: "interface",
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request: 0x22,
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value: 1,
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index: iface,
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});
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pubkeyBtn.disabled = false;
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signKind1Btn.disabled = false;
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nip04EncBtn.disabled = false;
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nip04DecBtn.disabled = false;
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nip44EncBtn.disabled = false;
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nip44DecBtn.disabled = false;
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setStatus(`Connected (iface ${iface})`, "ok");
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log("Connected. Interface", String(iface));
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try {
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await fetchOwnPubkeyAndFillPeers();
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log("Default peer pubkeys set to selected signer pubkey");
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} catch (e) {
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log("Auto pubkey fetch failed:", String(e));
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}
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}
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connectBtn.addEventListener("click", async () => {
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try {
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await connect();
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} catch (e) {
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setStatus("Connect failed", "err");
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log("Connect failed:", String(e));
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}
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});
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pubkeyBtn.addEventListener("click", async () => {
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try {
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await fetchOwnPubkeyAndFillPeers();
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} catch (e) {
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pubkeyOutEl.textContent = String(e);
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}
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});
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signKind1Btn.addEventListener("click", async () => {
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try {
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let tags = [];
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try {
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tags = JSON.parse(kind1TagsEl.value || "[]");
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if (!Array.isArray(tags)) throw new Error("tags must be an array");
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} catch (e) {
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throw new Error(`Invalid tags JSON: ${String(e)}`);
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}
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const unsignedEvent = {
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kind: 1,
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created_at: Math.floor(Date.now() / 1000),
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tags,
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content: String(kind1ContentEl.value || ""),
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};
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const params = [unsignedEvent, getIndexOptions()];
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const resp = await rpcCall("sign_event", params, "web-sign-kind1");
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signOutEl.textContent = pretty(resp?.result ?? resp);
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} catch (e) {
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signOutEl.textContent = String(e);
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}
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});
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nip04EncBtn.addEventListener("click", async () => {
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try {
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const peer = requirePeerHex(nip04PeerEl.value);
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const msg = String(nip04MsgEl.value || "");
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const params = [peer, msg, getIndexOptions()];
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const resp = await rpcCall("nip04_encrypt", params, "web-nip04-enc");
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nip04OutEl.textContent = pretty(resp?.result ?? resp);
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if (resp && typeof resp.result === "string") {
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nip04DecPeerEl.value = peer;
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nip04CipherEl.value = resp.result;
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}
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} catch (e) {
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nip04OutEl.textContent = String(e);
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}
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});
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nip04DecBtn.addEventListener("click", async () => {
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try {
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const peer = requirePeerHex(nip04DecPeerEl.value);
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const ciphertext = String(nip04CipherEl.value || "");
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const params = [peer, ciphertext, getIndexOptions()];
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const resp = await rpcCall("nip04_decrypt", params, "web-nip04-dec");
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nip04DecOutEl.textContent = requireStringResult(resp, "NIP-04 decrypt");
|
|
} catch (e) {
|
|
nip04DecOutEl.textContent = String(e);
|
|
}
|
|
});
|
|
|
|
nip44EncBtn.addEventListener("click", async () => {
|
|
try {
|
|
const peer = requirePeerHex(nip44PeerEl.value);
|
|
const msg = String(nip44MsgEl.value || "");
|
|
const params = [peer, msg, getIndexOptions()];
|
|
const resp = await rpcCall("nip44_encrypt", params, "web-nip44-enc");
|
|
nip44OutEl.textContent = pretty(resp?.result ?? resp);
|
|
if (resp && typeof resp.result === "string") {
|
|
nip44DecPeerEl.value = peer;
|
|
nip44CipherEl.value = resp.result;
|
|
}
|
|
} catch (e) {
|
|
nip44OutEl.textContent = String(e);
|
|
}
|
|
});
|
|
|
|
nip44DecBtn.addEventListener("click", async () => {
|
|
try {
|
|
const peer = requirePeerHex(nip44DecPeerEl.value);
|
|
const ciphertext = String(nip44CipherEl.value || "");
|
|
const params = [peer, ciphertext, getIndexOptions()];
|
|
const resp = await rpcCall("nip44_decrypt", params, "web-nip44-dec");
|
|
nip44DecOutEl.textContent = requireStringResult(resp, "NIP-44 decrypt");
|
|
} catch (e) {
|
|
nip44DecOutEl.textContent = String(e);
|
|
}
|
|
});
|
|
</script>
|
|
</body>
|
|
</html>
|